In order of my favourite to least favourite Mane Six Ponies:
Apple Jack because she is like me, and I love her accent.
Rainbow Dash because she is funny and looks so cool. I also relate to her, but not as much as Pinkie or AJ.
Rarity because although I am not into fashion, she is so funny and she quotes awesome things, especially when protecting her friends.
Pinkie Pie because she is crazy and funny but a little annoying.